Pump attachment



No. 749,797. PATENTED JAN. 19, 1904.

B. F. KIMBALL.

PUMP ATTACHMENT.

APPLIGATIOH FILED JUNE 8, 1903.

NO MODEL.

M fl g.

1 UNITED STATES Patented January 19, 1904.

PATENT OFFICE.

EARLE F. KIMBALL, OF CHELSEA, MASSACHUSETTS, ASSIGNOR OF ONE- HALF TOCHARLES W. FULLER, OF CHELSEA, MASSACHUSETTS.

PUMP ATTACHMENT.

SPECIFICATION forming part of Letters Patent N0. 749,797, dated January19, 1904.

i Application filed June 8, 1903. Serial No. 160,503. (No model.)

To all whom it may concern:

Be it known thatLEARLE F. KIMBALL, a citizen of the United States,residing at Chelsea, in the county of Suifolk and State ofMassachusetts, have invented an Improvement in Pump Attachments, ofwhich the following description, in connection with the accompanyingdrawings, is a specification, like numerals on the drawings representinglike parts.

This invention relates to a device which is designed to facilitate the'operation of packing the piston-rods of steam-pumps and similar devices.

When the piston-rod of a steam-pump needs repacking, it becomesnecessary to shift the position of said rod so as to carry any nuts,collars, or other connecting devices on the piston-rod far enough awayfrom the stuffingbox which is to be repacked to permit the collar orsleeve of the stufling box to be re moved. This is sometimes a ratherdifficult operation, owing to the lack of proper tools.

My invention is designed to provide a simple device which can be easilyattached to the pump and by means of which the position of thepump-piston may be readily shifted.

The invention comprises a fulcrum-block which is adapted to be clampedto the frame of the pump and a bar or lever fulcrumed on said block andwhich is adapted to engage either the collar or nut on the pump-pistonor to engage the rocker-arm or any other part connected to the pistonfor the purpose of shifting the position of the piston.

In the drawings, Figure 1 is a view of a pump, showing my attachmentapplied thereto, the portion of the pump having the attachment appliedbeing shown in section. Fig. 2 is a perspective view of my improvedattachment, showing part of the pump-frame and part of the piston-rod ofthe pump in dotted lines. Fig. 3 is a side elevation of a pump having myimprovement applied thereto. Fig. 4 is a modified form of fulcrum-pin.

My attachment is adapted to be used in connection with any steam-pump,and in Fig. 1 of the drawings I have illustrated a duplex pump. Theinvention is not limited in its use to this character of pump, however.

The fulcrum-block is designated by 3 and is made in the form of a clamp,which is adapted to be clamped in any suitable position upon the frame 4of the pump. The form of block herein illustrated has the fixedclamping-jaw 5 and the movable clampingjaw 6, which plays back and forthin suitable guides '7 in the stem 8 of the block. The jaw 6 is given itsmovement by means of an adjusting-screw 9, which operates in a plate orhead 10, integral with the stem 8. The active faces of the jaws 5 and 6may be roughened or corrugated, as at 11, in order to afford a bettergrip upon the pump-frame.

Fulcrumed to the fulcrum-block is a lever or bar 12, by means of whichthe piston is given its desired movement. Any suitable means forfulcruming the lever on the fulcrum-block may be employed.

In the form of myinvention shown in Figs. 1 and 2 I have illustrated 'afulcrum-pin 14:, carried by the block, which pin extends into or througha slot 15 in the lever or bar 12, said pin forming a fulcrum for thelever.

To adapt the attachment for use with different styles and constructionsofpump, I make the pin 14 adjustable in the fulcrum-block,

As herein shown, the fulcrum-block is provided with the bevel-face 16and with the horizontal face 17 and in each of said faces will be formedone or more holes or sockets 18, into which the pin 14 may be inserted.In Figs. 1 and 2 I have illustrated the pin as being inserted in theholes in the inclined surface 16. If the portion of the pump-frame towhich the clamp was secured stood lower with reference to the piston-rodthan is shown in Fig. 1, the pin could be placed in the apertures in thehorizontal face 17.

In Fig. 4 I have illustrated a diflerent form of pin, which has an eyeor loop 19, through which any ordinary round bar may be inserted. Thisconstruction has the advantage that no special form of bar is necessary.

In using my invention the fulcrum-block may be clamped to the pump-framein the proper position, as illustrated in Fig. 1, and the fulcrum-pin 14inserted in that aperture 18 which will enable the lever 12 to operatemost efficiently. Thereafter the lever is fulcrumed on the pin, and theend of the lever brought to bear either against the collar or nut 20 onthe piston-rod 21 or against the rocker-arm 22 or against any other partof the pump which is connected to the piston-rod and through whichmotion can be cornmunicated to said piston-rod.

Since the fulcrum-block for the time being furnishes a fixed fulcrum forthe lever, the piston-rod may be readily shifted into a position whichwill permit the stufiing-box to be properly packed. The nature of thefulcrumblock is such that it may be clamped to the pump-frame of anystyle of pump, and by providing it with a plurality of holes indifferent relative positions the lever 12 may be adjusted to operate onany pump.

While I have herein shown one particular form of fulcrum-block, I wishit understood that the shape of this block may be varied in many wayswithout departing from the invention, as it may be necessary to vary theshape in some particulars to accommodate certain styles of pump. Theessential feature of the invention, however, is a fulcrum-block which isadapted to be clamped to the frame of the pump and a. lever fulcrumed onsaid block.

Having described my invention, what I claim as new, and desire to secureby Letters Patent, 1s-

1. In a device of the class described, a fulcrum-block adapted to beclamped to the frame of a pump, and a lever fulcrumed on said block andadapted to engage the piston-rod of the pump whereby the position ofsaid rod may be shifted.

2. In a device of the class described, a fulcrum-bloclgmeans toadjustably clamp said block to the frame of the pump, and a lever toengage and move the piston-rod fulcrumed on said block.

3. In a device of the class described, a fulcrum-block, a fulcrum-pincarried by said block, means to adjustably clamp said block to the frameof the pump, and a lever fulcrumed on said pin.

4. In a device of the class described, a fulcrum-block, a fulcrum-pinadjustably carried thereby, means to adjustably clamp said block to theframe of the pump, and a piston-rodmoving lever fulcrumed on said pin.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

EARLE F. KIMBALL.

Witnesses:

LOUIS 0. SMITH, JOHN C. EDWARDS.

